I'm not sure if this was intentional or not, and I don't know how I have missed this until now, but I feel like there is a naming inconsistency with how Music's loading methods are named.
Everything I checked in the graphical module, plus even the SoundBuffer class' loading methods are named loadFromXXX, but only Music's methods are named openFromXXX.
Not that it really matters or has any kind of serious impact. I was just curious!